21110022214037 has 2 divisors, whose sum is σ = 21110022214038. Its totient is φ = 21110022214036.

The previous prime is 21110022214033. The next prime is 21110022214103. The reversal of 21110022214037 is 73041222001112.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16460539151281 + 4649483062756 = 4057159^2 + 2156266^2 .

It is a cyclic number.

It is not a de Polignac number, because 21110022214037 - 2² = 21110022214033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21110022213997 and 21110022214015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21110022214033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10555011107018 + 10555011107019.

It is an arithmetic number, because the mean of its divisors is an integer number (10555011107019).

Almost surely, 2^{21110022214037} is an apocalyptic number.

It is an amenable number.

21110022214037 is a deficient number, since it is larger than the sum of its proper divisors (1).

21110022214037 is an equidigital number, since it uses as much as digits as its factorization.

21110022214037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 26.

Adding to 21110022214037 its reverse (73041222001112), we get a palindrome (94151244215149).

The spelling of 21110022214037 in words is "twenty-one trillion, one hundred ten billion, twenty-two million, two hundred fourteen thousand, thirty-seven".